Problem Description

In this single degree of freedom example, a frame element is fixed at one end and connected to a grounded hook element at the other end. The initial opening in the hook is 0.04 inch. A temperature drop of 100 °F is applied to the frame element. The displacement at joint 1 and the axial force induced in the link and frame elements by the temperature drop are compared with hand calculated results. The model is created in the XZ plane. Only the Uz degree of freedom is active for the analysis. The hook element is modeled as a single-joint link element at joint 1. This means that one end of the hook element is connected to the ground and the other end is connected to joint 1. The hook element is oriented such that its positive local 1 axis is parallel to the positive global Z axis. This is the default orientation of single joint link elements. Only U1 degree of freedom properties are defined for the hook element. When closed, the stiffness of the hook element is 5,000 k/in. The analysis is performed using static nonlinear load cases.

Tested Features

Hook element links
Force-controlled nonlinear static analysis
Frame temperature loads

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