Helpful Hints and Tips: Newton-Raphson Integration Technique for Geometric Nonlinear Analysis
The Newton-Raphson integration technique is recommended when there is strong coupling between membrane and bending effects when analyzing thin domains, and should be used if the Direct Integration technique diverges and/or becomes unstable. The Newton-Raphson integration technique is illustrated for a thin diaphragm with elastic-perfectly-plastic materials under uniform pressure.
Additional example where the Newton-Raphson integration technique is recommended:
Looking for Resources?
Recent News & Events
“At DST Group, we have effectively used StressCheck® over the last 10 years to determine accurate stress intensity factors. The results have been used to improve our residual strength and structural life estimates for aircraft in service with the Royal Australian Airforce, including C-130, P-3C and F/A-18 A/B. We have found it to be extremely easy to use and a very versatile code with which to create parametric models.
We have recently used StressCheck® to obtain improved stress intensity factor solutions (Improved stress intensity factors for selected configurations in cracked plates and Improved stress intensity factors for a single corner crack at a loaded fastener hole) for five key generic configurations. These transferable parametric results have been published externally. One specific example is the non-linear contact analysis of a cracked, filled fastener hole, with both fastener and remote plate loading.”
Dr. Manfred Heller, HeadStructural & Damage Mechanics, DST Group