D=380 cost per kit=120 order cost=35 holding cost= 20% of kit cost =24 backorder

Question

D=380
cost per kit=120
order cost=35
holding cost= 20% of kit cost =24
backorder cost=15
lead time for orders= 6 days air freight
working days per year=300

1. what is the economic order quantity with backorders planned shortage policy ?
2. what is the planned number of backorders during each cycle?
3 what is the average annual number of backorders
4. if for the backorder planned shortage model the annual holding cost =107.10 and annual backorder planned shortage model=278.46.what is the total annual variable cost?
5.what is the reorder point with backorder policy?
6.what is the number of orders per year for this backorder planned shortage model?
7.what is the cycle time (days)with the backorder planned shortage model policy?
8.what would you recommend concerning the implementation of a backorder policy?

Explanation / Answer

Write the genralized Hooke’s law for strain in each direction for the three-dimensional case.

Here, the axial strain in x, y ,z directions are respectively, the axial stress in x ,y,z directions are , Poisson’s ratio is , and Modulus of elasticity is E.

Now substitute 0 for in .

Again, substitute 0 for in .

Finally, substitute 0 for in .

Therefore, the specific simplified Hooke’s law for strain in x, y, z directions are , , and respectively.

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