A long concrete beam is to undergo a thermal test to

Question

A long concrete beam is to undergo a thermal test to determine its loss of strength in the event of a building lire. The beam cross section is triangular as shown in the sketch. Initially, the beam is at a uniform temperature of 20 °C. At the start of the test, one of the short faces and the long face are exposed to hot gases at 400 °C through a heat transfer coefficient of le W/(mz K) and the remaining short. face is adiabatic. Produce a graph showing the highest and lowest temperatures in the beam as a function of time for the first 1 hour of exposure. For the concrete properties, use k - 0.5 Va(mK) and a = 5 x 10-7 m2.1s. Use a node spacing of 4 cm. and use an explicit difference scheme.

Answer 1

Give your assignment that with all aspect such as showing below: An extended concrete beam is to undergo a thermal test to find out its loss of strength in the event of a building lira. The beam cross section is triangular as exposed in the sketch. At first, the beam is at a uniform temperature of 20 °C. At the begin of the test, one of the short faces and the long face are exposed to hot gases at 400 °C through a heat transfer coefficient of le W/(mz K) and the staying short. Face is adiabatic. Create a graph illustrating the highest and lowest temperatures in the beam as a function of time for the first 1 hour of exposure. For the concrete properties, utilize k - 0.5 Va (mK) and a = 5 x 10-7 m2.1s. Utilize a node spacing of 4 cm. and use an explicit difference scheme.