Midship section problem from naval architect

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SUMMARY

The discussion focuses on the analysis of a midship section in naval architecture, specifically addressing a moment of Mxx = 80,000 tm Hogging. Key tasks include determining the location of the neutral axis (NA), calculating the sectional modulus, assessing stress at the deck and bottom plates, and evaluating the safety factor for yielding with a material yield stress of 200 MPa. Additionally, the discussion explores the structural advantages of using angled-section at the top deck and requests information on hull failure modes and design practices to mitigate these risks.

PREREQUISITES
  • Understanding of naval architecture principles
  • Knowledge of structural analysis techniques
  • Familiarity with material yield stress concepts
  • Experience with hull design and failure modes
NEXT STEPS
  • Study the calculation of neutral axis location in structural members
  • Learn about sectional modulus and its significance in hull design
  • Research stress analysis methods for deck and bottom plates
  • Investigate common hull failure modes and design strategies to prevent them
USEFUL FOR

Naval architects, marine engineers, and students in naval architecture seeking to enhance their understanding of midship section analysis and structural integrity in hull design.

buaazjw
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Dear everyone,

Recently i attend a course and my homework in below. As I have leave school for ten years, lots of knowledge have forgotten, so pls help me resolve it. Sincerely thanks your help.

The midship section is subjected to a moment of Mxx = 80,000 tm Hogging. The idealized structural members contributing to the longitudinal strength of the hull girder are as shown in the figure below:
(a) Determine the location of the neutral axis NA
(b) Determine the sectional modulus of the midship section
(c) Determine the stress at the deck and bottom plates
(d) Determine the safety factor for yielding if the material yield stress is 200 MPa
(e) What are the structural advantages of using angled-section at the top deck?
(f) Search the internet for the likely hull failure modes. Write up your findings, in not more than 300 words, about the design practice to prevent these failure modes.
 

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could anyone help me ?