1. The plane stress element only allows for in-plane displacements, while the frame or beam element.

1. The roll pressure part simply allows for in-plane displacements, occasion the shape or glow part resists displacements and rotations. How can we cohere the roll pressure and glow parts and still ensure compatibility?

2. Calculate the slang matrix of part 1 of the two-triangle part standard of the crosswise dish in roll pressure shown in Figure P6–23. Then use it to calculate the slang matrix of part 2.