These are nonlinear elastic materials for which the slope of the stress-strain curve, (ds/de) e, is the strain dependent ... after which the material plastically deforms. A brittle material fractures ...

The tensile behavior of composites is also different from that of metals in the 'plastic deformation' region of the stress/strain curve. The diagram shows the curve for a uniaxial sample tested along ...

In brittle materials the ultimate tensile strength is close to ... test and recording the engineering stress versus strain. The highest point of the stress–strain curve is the ultimate tensile ...