بحث بعنوان Medium Velocity Impact on Sandwich Beams

أخوانى فى الله
أحضرت لكم
بحث بعنوان
Medium Velocity Impact on Sandwich Beams
Mohammad Azeem* R. Ansari
Mechanical Engg Dept., Aligarh Muslim University Mechanical Engg Dept., Aligarh Muslim University

و المحتوى كما يلي :

Abstract— Sandwich structures are now extensively used everywhere due to their high strength and less weight. In
this paper the impact tests on adhesively bonded sandwich beams are carried out. Sandwich beams with GFRP as a
core material having aluminium facesheets are transversely impacted by a rigid projectile at various impact velocities
of the projectile with the help of pneumatic gun. Various failure modes exhibited by the sandwich beams are
encountered which involves large inelastic deformation, core shearing and delamination etc.
Keywords— Sandwich beam; GFRP; projectile; Impact; delamination
CONCLUSION
The impact tests with Blunt - cylindrical projectile were carried out on the sandwich beams having 0.875 mm
aluminium facesheet and 2 mm GFRP as a light weight core bonded by Araldite adhesive. Experimental results show that
the deflection of all sandwich beam specimen increases with increase in projectile velocity up to ballistic limit. After the
ballistic limit is crossed turning of the fractured parts towards the clamps in beam specimen took place, and the turning is
larger at larger impact velocities. Some of the specimens namely 7 and 8 experienced about 2700 turning of the back
facesheet. Several failure modes in the specimens are encountered during as a result of impact. These are large inelastic
deformation, core shear, delamination, tearing of face sheets. Face sheet debonding from the core largely impairs the load
bearing capacity of sandwich beams, and hence the property of the adhesive becomes the important parameter for
designing sandwich structures.

كلمة سر فك الضغط : books-world.net
The Unzip Password : books-world.net
أتمنى أن تستفيدوا من محتوى الموضوع وأن ينال إعجابكم
رابط من موقع عالم الكتب لتنزيل بحث بعنوان Medium Velocity Impact on Sandwich Beams
رابط مباشر لتنزيل بحث بعنوان Medium Velocity Impact on Sandwich Beams

كيفية التسجيل فى منتدى هندسة الإنتاج والتصميم الميكانيكى

طريقة التنزيل من المنتدى خطوة بخطوة

الهارد الشامل والمتكامل لقسم ميكانيكا

******************************************************

بحث بعنوان Medium Velocity Impact on Sandwich Beams 761752

» بحث بعنوان Low Velocity Impact Properties of Foam Sandwich Composites - A Brief Review
» رسالة دكتوراة بعنوان Analytical and Experimental Study of High Velocity Impact on Composite Plates
» رسالة ماجستير Investigation of Composite Patch Performance Under Low-Velocity Impact Loading
» بحث بعنوان A Composite Sandwich Plate With a Novel Core Design
» بحث بعنوان Review of Impact Damages Modelling in Laminated Composite Aircraft Structures