Polyme Analysis 2010 Part 4 pot

... üFlexural strength üFlexural modulus Flexural test b b L F δ 3 3 4 hb Lm E b = 2 2 3 hb LF b =σ m : initial slope of the load vs. deflection curve Izod Impact Testing (Notched ... class="bi x0 y0 w1 h1" alt="" For relatively thin samples → two point loading For thick samples → 4 point loading Flexural test üThe specimens are conditioned at the specified temperature in a ... be used...

Ngày tải lên: 12/08/2014, 02:20

... 24, No. 3, (35 -42 ), ISSN1225-1 143 Kumai, T. (1952). The Flexural Vibrations of a Square Plate with a Central Circular Hole. Proc. 2 nd Japan Natl. Congr. Appl. Mech., (339- 342 ), ISSN 044 8-8660 ... Dynamic Response of Composite Plates with Cut- outs, Part I: Simply-Supported Plates. Journal of Sound and Vibration, Vol. 54, ( 549 - 5 64) , ISSN0022 -46 0X Rajamani, A. & Prabh...

Ngày tải lên: 20/06/2014, 00:20

...  - Leader ch hin tab o 1 None Tab to ra khong trng o 2-3 -4 Tab tu chm, du gch hoc gch li - nh: o m dng

Ngày tải lên: 02/07/2014, 21:21

... composition of polymers etc. and complex morphological systems ⇒ analysis of polymer ≠ the small organic materials ⇒ Focus on viscoelasticproperties, dynamic mechanical testing. Polymer analysis üThe ... advantageous, particularly in the case of tests running for a long time (creep tests) Tests for Producing Design Data TRƯỜNG ĐẠI HỌC BÁCH KHOA ĐÀNẴNG KHOA HOÁ PHÂN TÍCH POLYME (POL...

Ngày tải lên: 12/08/2014, 01:22

... (e) (f) Compression test (b) Shear (g) (h) (i) Impact test (h) (i) What are our expectations of polymer materials? •Excellent Characteristics: Mechanical and Physical Properties Thermal Behaviour Surface ... cost •Less adverse environmental impact •Good resistance to environmental attacks Mechanical Testing of Polymers For the composite samples Longitudinal test Transverse test

Ngày tải lên: 12/08/2014, 02:20

... Semicrystallineand crosslinkedPolymers Deformation of Amorphous Polymers TENSILE RESPONSE: ELASTOMER CASE üModuliof elasticity for polymers are ~ 10MPa-4GPa (compare to metals ~ 50 - 40 0 GPa) üTensile strengths ... hundreds of MPato several GPa) üElongation can be up to 1000 % in some cases (< 100% for metals) üPolymers are also very sensitive to the rate of deformation (strain rate)....

Ngày tải lên: 12/08/2014, 02:20