Question

1 .Write a e program using the following structure to hold the compression load, p, and the diameter, cl, of a column of length, 1. Compute the compression stress all(l strain in the column. Input your variables p,d,1 with a (hit file (bring in at least 5 sets). Compute the compression stress and strain iii the column. Output the load, diameter, stress and strain to a dat file. struct strength float p: float d: float stress: float strain Use the following formulas to compute the stress and strain: E is the modulus of elasticity for steel 30x10^6 psi

Answer 1

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#define E 30000000   //elasticity value of steel

#define PI 3.14

struct Strength

{

  float p;

  float d;

  float l;

  float stress;

  float strain;

};

int main()

{

  FILE *rptr;

  FILE *wptr;

  

  rptr=fopen("input.txt","r");

  wptr=fopen("output.txt","wb");

  

  float area;

  struct Strength steel;

  

  while(fscanf(rptr," %f %f %f ",&steel.p,&steel.d,&steel.l)==3)       //reading from file

  {

    area=PI*(steel.d * steel.d)/4;

    steel.stress= steel.p/area;       //as formulae described in problem

    steel.strain=steel.stress/E;

    

    fprintf(wptr,"%f %f %f %f",steel.p,steel.d,steel.stress,steel.strain); //writing into file

    fprintf(wptr,"\n");

    

  }

  

  return 0;

}