## Yield stress anomaly

**wikipedia.org**|

## Stress analysis

The aim of the analysis is usually to determine whether the element or collection of elements, usually referred to as a structure, can safely withstand the specified forces. This is achieved when the determined stress from the applied force(s) is less than the ultimate tensile strength , ultimate

**wikipedia.org**| 2011/7/12 9:29:41

## Yield

**Yield** From Wikipedia, the free encyclopedia Jump to: navigation , search Look up **yield** in Wiktionary , the free dictionary. **Yield** in science, mathematics, and engineering: **Yield** (casting) , the ratio of usable casting to scrap by weight **Yield** (chemistry) , the amount

**wikipedia.org**| 2011/2/19 9:25:27

## Yield (engineering)

The **yield** strength or **yield** point of a material is defined in engineering and materials science as the stress at which a material begins to deform plastically . Prior to the **yield** point the material will deform elastically and will return to its original shape when the applied stress

**wikipedia.org**| 2011/9/2 7:00:31

## Von Mises yield criterion

The von Mises **yield** criterion [ 1 ] suggests that the yielding of materials begins when the second deviatoric stress invariant J 2 reaches a critical value k . For this reason, it is sometimes called the J 2 - plasticity or J 2 flow theory. It is part of a plasticity theory that applies

**wikipedia.org**| 2011/8/17 0:25:32

## Hill yield criteria

The quadratic Hill **yield** criterion [ 1 ] . has the form Here F, G, H, L, M, N are constants that have to be determined experimentally and σ i j are the stresses. The quadratic Hill **yield** criterion depends only on the deviatoric stresses and is pressure independent. It predicts the

**wikipedia.org**| 2010/9/26 22:06:32