What is the approximate bursting pressure calculated for a 1" steel plate with a tensile strength of 55,000 PSI and joint efficiency of 85%?

To determine the approximate bursting pressure for a steel plate, it's important to consider the tensile strength of the material and the joint efficiency. The formula used to calculate the bursting pressure in a plate is:

Bursting Pressure = (Tensile Strength × Joint Efficiency) / Safety Factor.

For this specific question:

1. The tensile strength of the steel plate is given as 55,000 PSI.

2. The joint efficiency is provided as 85%, which is expressed as 0.85 in the calculation.

The calculation can be simplified to just consider the joint efficiency and tensile strength:

Bursting Pressure = 55,000 PSI × 0.85 = 46,750 PSI.

However, this value needs to be appropriately converted or bounded by practical safety standards and common operational conditions, often culminated in a more reasonable bottle neck, which could account for specific material characteristics, application environment or regulations, thus allowing you to align with industry standards.

A safe approximation is then made based on common engineering calculations or standardized practices, leading to estimated values that tend to be lower than the theoretical maximum, providing a buffer for safety and functional design. Among the choices given, the value closest to industry standards and practices derived from this calculation results in approximately