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  • Users: mark20
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  1. mark20

    Bellows Vibration

    Dear Savior... I am trying to calculate the natural frequency of a bellows compressed under load. the best calc i have used is Fn=2Pi x SQROOT(k/m) My questions are : 1, Does anyone know of a better calc? 2, When I finally come to being able to check the calc through testing, what instrument...
  2. mark20

    !!!Tough Application!!!

    Hi, Can anyone help me with a tough application? I have designed a shear testing jig which is basically 2 plates being pulled in oposing directions. The test piece is bonded between the plates. I need to select an adhesive which will allow me to run shear tests on various materials and...
  3. mark20

    Shear testing Jig for Plastic

    HI people, I'm currently involved in a project where the goal is to design a shear testing jig. I have looked through various standards but to no avail. Does anyone know where i can find any information on designing such a jig to get accurate results for testing plasics. I have already done a...

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