Stability of elements require determination of their dimension, such that
the resulting displacement under static or thermal loads are acceptable.
Those elements have to resist the applied loads so that the structure or any
element does not loss c
onstancy. The most important criteria for stability
is represented via element curvature under the influence of load, that load
is of any type or in any position. Therefor this paper presents derivation
of a theoretical equation to calculate the deflection generated from
heating variation between the top and bottom surface of simple steel
beam, by means of heating transfer expression.
This experiment investigates the effect of aluminum powder as metallic filler of
unsaturated thermosetting polyester resin on the wear rate and its mechanisms according to
time.
The obtained results show that the rate of wear increases with increa
se of time as a
result of increase the temperature generated of friction in all specimens. But when we add
the particles either Aluminum to polyester matrix, the rate of wear reduce as a result of
increase the thermal conductivity of polyester matrix, that leads reduction of the
temperature of contact surface, that leads less wear. We study the mechanisms of wear by
microscope of the worn surface. It found that the predominant mechanisms of wear vary
from adhesive wear at the lowest value of test time to abrasive wear (3- body) at the
highest value of test time.
In this paper, we will focus on the types of roof’s brick used
in construction and theoretically compare thermally between
different kinds in the local market, and finally we will propose a
new form of roof’s brick give the optimal insulation without
increasing the weight.
Calculation of fire resistance for any structural member divided in two independent steps . The first step involves predicting the temperature distribution inside the structural members, referred to as ‘thermal analysis’. The second step of the analy
sis, termed the ‘structural analysis’, is carried out for the main purpose of determining the response of the structure due to static and thermal loading. The first stages of analysis are discussed in this paper, using finite element method by a structural analysis program " ANSYS "
