Tension
tension when it bends the ridges are pulling apart and thats tension
Any spring that is left under tension will gradually lose its springiness, due to metal fatigue.
Stone slabs are stronger under compression.
The opposite of tension.
Tension
compact bone
A strong fiber is one that soes not break under tension easily. Some examples of strong fibers are:kevlarhempcarbonglassspiders silk
All parts have to be strong, the metal drum hoops need to be strong as they apply tension to the drum head, the tension lugs need to be to stop them breaking under strain, the shell has to be as the tension lugs are fixed to it and if too weak the lugs will be ripped off the shell. The same applies to the stands, mounting brackets etc.
The spongy bone is strong but lightweight.
Bamboo is as strong as a human bone and a human bone is really strong
This means that the item is strong under tension (while being pulled apart).
Water forms hydrogen bonds, which gives it a strong surface tension.
tension; under a tensile stress ========================
Spongy bone
Cement is strong because is it's molecular structure means it links together under tension, but will come apart easily if pulled length-ways.
Periosteum is the hard strong layer of bone