1 Jiangyu Li, University of Washington

Lecture 22Plasticity

Mechanical Behavior of Materials Sec. 12.1-12.3

Jiangyu LiUniversity of Washington

Mechanics of Materials Lab

2 Jiangyu Li, University of Washington

Stress Strain Curve

3 Jiangyu Li, University of Washington

Cyclic Loading

4 Jiangyu Li, University of Washington

Elastic-Perfect Plastic and Linear Hardening

5 Jiangyu Li, University of Washington

Power Hardening and Ramberg-Osgood Relation

6 Jiangyu Li, University of Washington

Rheological Modeling of Nonlinear Hardening

7 Jiangyu Li, University of Washington

Deformation Plasticity Theory

8 Jiangyu Li, University of Washington

Secant Modulus

9 Jiangyu Li, University of Washington

Stress-Strain Curve

10 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

11 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

12 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

13 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

14 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

15 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

16 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

17 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

18 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

19 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

20 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

21 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

22 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

23 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

24 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

25 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

26 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

27 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

28 Jiangyu Li, University of Washington

Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, Third Edition,by Norman E. Dowling. ISBN 0-13-186312-6.

© 2007 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s),

write to: Rights and Permissions Department, Pearson Education Inc., Upper Saddle river, NJ 07458.

29 Jiangyu Li, University of Washington

30 Jiangyu Li, University of Washington

Assignment

Mechanical Behavior of Materials

7.2, 7.6, 7.33