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STM Resources: D-Regions Example 02

posted Mar 18, 2014, 9:15 AM by Domain Admin   [ updated Jul 6, 2015, 11:04 PM ]
D-regions example 02

In this example, D-regions define as portion of discontinuity of geometry; for examples, changing from small to larger cross section regions or changing from solid section to opening section. These are clearly illustrated in Fig. (a). 
D-regions can be defined as portions (Fig. (b)) near supports and under pointed load where the non smooth stress field due to the force transfer mechanism occurs. 

Using the concept of D-Regions due to discontinuity of geometry and force transfer mechanism, the examples of D-Regions in a portal frame are illustrated in Fig. (c).  

For the subsequent examples, I will collect tons of D-Regions examples to illustrate how challenging engineers can define this complex state of stress and strain regions when designing a structure.

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