Page 170 - MATERIAL SCIENCE AND ENGINEERING PART 1
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Concept of stress-                              1           2         3
                                                      1

                  strain









                   Concept of                                 Point b: In other words, it is the



                       stress and                             minimum stress under which a
                                                              material deforms permanently.


                                    strain



                                                                                                     d
                                                                                                     x
                                                                                                                        e
                                                                            b


                                                        Stress ()  N/mm 2  a   c














                                                                                      Strain ()                                        153



                                                    Politeknik Ibrahim Sultan
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