Weight/Math Question - ???
OK all you engineers out there help me out with this one. I found an article that gives the tensile strength of the tunica (how much force it can stand before deforming.) I want to translate this into weight. Here is a copy of the article:
The elasticity and the tensile strength of tunica albuginea of the corpora cavernosa. - Bitsch M - J Urol - 01-MAR-1990; 143(3): 642-5 (From NIH/NLM MEDLINE)
The aim of this study was to determine the tensile strength and the elasticity of the tunica albuginea (TA), and describe morphological structures in the tissue before and after mechanical deformities. Twenty cadavers of men aged between 33 and 83 were examined. Cavernosometry was performed in all specimens. Afterwards in five cadavers the flow rate was increased until a herniation of the TA appeared. A strength about 1500 mm. Hg was found. Similar results were found in four who had an inflatable prosthesis (AMS 700) inserted, and the intraprosthetic pressure increased until a deformity was noted. Slices of TA (thickness 1.3 to 3.3 mm.) from 11 specimens were tested in a tensiometer. The elasticity coefficient was found to be around 10(8) N/m2, and the tensile strength to be 600 to 750 mm. Hg (10(4) to 10(5) N/m2). The difference between the tensile strength achieved in the tensiometer and during saline infusion is possibly caused by the intracavernous framework. Microscopy showed that TA is mainly composed of collagen fibres which are situated in an undulating arrangement, with a few elastic fibres arranged longitudinally which connect the undulating bundles of collagen fibres. When the tissue is overstretched, the elastic fibres are destroyed and the undulating arrangement disappears.
The elasticity and the tensile strength of tunica albuginea of the corpora cavernosa.
Bitsch M - J Urol - 01-MAR-1990; 143(3): 642-5
From NIH/NLM MEDLINE
Notice the tissue strength is listed in mm/hg and N (newtons.) Anybody know how to convert this into pounds? I found several online conversion sites but I’m not sure I’m doing it right.
For 1500 mm/hg - I got 28.5 lbs/sq inch.
For 700 mm/hg (average of 600-700) - I got 12.35 lbs/sq inch.
Even if this is correct, what would this translate in to say hanging pounds?
Thanks for your help!
Let me tell you the secret that has led me to my goal: my strength lies solely in my tenacity.