9.1

? _xx = 500 ? in Figure P9.1.

Figure P9.1

9.2

? _yy = ?400 ? in Figure P9.2.

Figure P9.2

9.3

? _xy = 300 ? in Figure P9.3.

Figure P9.3

9.4

? _yx = 300 ? in Figure P9.4.

Figure P9.4

In Problems 9.5 through 9.7, at a point, the only nonzero strain component is as given in each problem. Determine the strain components in the n, t coordinate system shown in Figure P9.5.

Figure P9.5

9.5

? _xx = ?400 ?.

9.6

? _yy = 600 ?.

9.7

? _xy = ?500 ?.

9.8

At a point in plane strain the strain components are ? _xx = ?400 ?, ? _yy = 600 ?, and ? _xy = ?500 ?. Using the results obtained in Problems 9.5, 9.6, and 9.7, determine the strain components in the n, t coordinate system shown in Figure P9.5.

In Problems 9.9 through 9.11, at a point, the only nonzero strain component is as given in each problem. Determine the strain components in the n, _t coordinate system shown in Figure P9.9.

Figure P9.9

9.9

? _xx = ?600 ?.

9.10

? _yy = ?800 ?.

9.11

? _xy = ? _xy = 500 ?.

9.12

At a point...