Comparative Study for Evaluation of Blast Load Parameters using IS 4991-1968 and UFC 3-340-02

The essence of the blast load relies on the factors such as explosive weight, standoff distance of the structure from the explosive, the location of the explosion concerning the structure, shape of the protective structure, and orientation of the structure relative to the explosion. The study provides an approach for calculating blast wave parameters according to IS 4991-1968 and UFC 3-340-02 and demonstrated by examples. It concludes that, in Indian Standard, only positive blast wave is considered but in UFC, both the positive as well as negative blast wave is taken into consideration. Also, there are significant differences in evaluating the parameters as per both standards.

Will the Circular Economy and Related Concepts Save the World?

The humans have been utilizing the resources for their sustenance since the birth of mankind. In fact, every living specie is dependent on the natural resources available to them for the nature to sustain their life on earth. As a result, the humans have reached on such a stage where they are standing on the verge of natural resources to extinct. However, the governments of various countries are taking serious actions in order to implement policies driven on the basis of circular economy to make sure the resources are utilized quite efficiently and also saved for the coming generations to come. It’s time for the common man to become aware about this serious issue of creating products of materials that cannot be reused or recycle. It is time we understand that the cycle of consumerism has to be not backed by production by the capitalists but rather using the resources and materials quite intelligently, smartly and in a limited manner to sustain living for the resent as well as for the generation to come. It’s time to understand the real meaning of sustainability and make it a part of the regime of this generation as mandatory prerequisite for the plans to be executed ahead. The need of the hour is to educate the people and bring the sustainable way of living in trend infusing it into the lifestyle of the people.