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Custom products design and manufacturing

More than 100 sets of mould for ceramic backing welding

Better service ,Better Design
contact us 718642093@qq.com

Read More
More than 100 sets of mould for ceramic backing welding

Welded structures subjected to fatigue loads-2

 

The static strength of the parent metal (and of the filler metal) is of less importance in

determining the fatigue strength of a weldedjoint.

This phenomenon can be explained by the theory of fracture mechanics. We nor-

mally distinguish between three different phases in the growth of a fatigue crack through

the material:

Phase 1:Crack initiation = the number of load cycles required before the discontinui-

ties form a real crack (of the order of hundredths of a millimetre in size).

Phase 2:Crackpropagation = after formation, the crack grows by a given particular

length for each new load cycle.

                  Phase 3:Final failure = when the crack has grown so much

 

 

                   Supplied  By   RIHUI Ceramic Welding Backing


Date: 2023-04-10     hits: 487    Return


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