Poisson's ratio as a function of time in composite material of viscoelastic behavior by depending on creep test

Other Title(s)

نسبة Poisson's كدالة للزمن في المواد المركبة للسلوك اللزج المرن بالاعتماد على اختبار التزحييف

Author

Ameed, Azhar Sabah

Source

Engineering and Technology Journal

Issue

Vol. 29, Issue 3 (31 Dec. 2011), pp.488-498, 11 p.

Publisher

University of Technology

Publication Date

2011-12-31

Country of Publication

Iraq

No. of Pages

11

Main Subjects

Chemistry

Topics

Abstract AR

السلوك اللزج-المرن للمواد المركبة مثل البوليستر المدعمة بطبقة من الألياف الزجاجية عشوائية التوزيع، و صف نسبة (Poisson) في معادلة جديدة للزمن و الإجهاد.

أجهاد الاسترخاء تم حسابه عمليا لوصف السلوك اللزج-المرن اللاخطي في المواد المركبة.

النتائج أظهرت أن نسبة (Poisson's Ratio) تزداد بنسبة تقريبية 16 % نتيجة لزيارة الإجهاد من 8.

239 MPa-6.

877MPa عند درجة حرارة ثابتة 30 درجة مئوية.

كذلك يتناقص مع ازدياد الزمن.

البحث الحالي يثبت انه ليس من الضروري تتبع خطوات نظرية اللزوجة-المرونة لوصف السلوك اللزج-المرن.

Abstract EN

In viscoelastic behavior of composite material, such as those made of thermo-set polyester and one layer random fiber glass, the Poisson’s ratio is described in new function of time and stress.

The relaxation stress is obtained experimentally to describe the non-linear viscoelastic behavior in composite material.

The results show that, Poisson’s ratio increases with an approximate rate of 16 % as a result of the increasing stress from 6.877 MPa to 8.239 MPa and decreases with increasing the time at constant temperature 30 Co.

The investigation demonstrated that such time dependence is not a necessary consequence of the theory of viscoelasticity to describe viscoelasticity behave.

American Psychological Association (APA)

Ameed, Azhar Sabah. 2011. Poisson's ratio as a function of time in composite material of viscoelastic behavior by depending on creep test. Engineering and Technology Journal،Vol. 29, no. 3, pp.488-498.
https://search.emarefa.net/detail/BIM-289984

Modern Language Association (MLA)

Ameed, Azhar Sabah. Poisson's ratio as a function of time in composite material of viscoelastic behavior by depending on creep test. Engineering and Technology Journal Vol. 29, no. 3 (2011), pp.488-498.
https://search.emarefa.net/detail/BIM-289984

American Medical Association (AMA)

Ameed, Azhar Sabah. Poisson's ratio as a function of time in composite material of viscoelastic behavior by depending on creep test. Engineering and Technology Journal. 2011. Vol. 29, no. 3, pp.488-498.
https://search.emarefa.net/detail/BIM-289984

Data Type

Journal Articles

Language

English

Notes

Includes appendices : p. 494-498

Record ID

BIM-289984