aded (pink) arec 68 mm 68 mm 68 mm 68 mm 68 mm 68 mm 98740460 X mm4 mm4 mm mm
aded (pink) arec 68 mm 68 mm 68 mm 68 mm 68 mm 68 mm 98740460 X mm4 mm4 mm mm
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter9: Moments And Products Of Inertia Of Areas
Section: Chapter Questions
Problem 9.43P
Related questions
Question
![**Title: Determining the Second Moments of Area and Radii of Gyration**
---
**Objective:**
Calculate the second moments of area in mm\(^4\) and the radii of gyration in millimeters for the shaded (pink) area with respect to the centroidal \(x'\)- and \(y'\)-axes.
---
**Diagram Explanation:**
- The diagram shows a vertically symmetrical pink polygon with respect to the \(y'\)-axis, marked with dimensions indicating key measurements.
- The width and height each consist of two sections measuring 68 mm, making the total dimensions 136 mm by 272 mm.
- A centroidal reference is marked at the center of the polygon, where the \(x'\) and \(y'\) axes intersect, with dimensions marked equally on either side to ensure symmetry.
---
**Measurements:**
- **Second Moment of Area:**
- \( \bar{I}_{x'} = 98740460 \, \text{mm}^4 \)
- \( \bar{I}_{y'} =\) (to be determined)
- **Radii of Gyration:**
- \( \bar{k}_{x'} =\) (to be determined)
- \( \bar{k}_{y'} =\) (to be determined)
---
The provided dimensions and axes allow for the calculation of structural properties critical in engineering analyses, such as stress distribution and bending resistance.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbf4a0e0b-2125-467b-b1bc-8bc81e995df8%2Fee3ac90f-5b11-4e04-9561-b4124e8bdfc3%2Ftlwgddr_processed.png&w=3840&q=75)
Transcribed Image Text:**Title: Determining the Second Moments of Area and Radii of Gyration**
---
**Objective:**
Calculate the second moments of area in mm\(^4\) and the radii of gyration in millimeters for the shaded (pink) area with respect to the centroidal \(x'\)- and \(y'\)-axes.
---
**Diagram Explanation:**
- The diagram shows a vertically symmetrical pink polygon with respect to the \(y'\)-axis, marked with dimensions indicating key measurements.
- The width and height each consist of two sections measuring 68 mm, making the total dimensions 136 mm by 272 mm.
- A centroidal reference is marked at the center of the polygon, where the \(x'\) and \(y'\) axes intersect, with dimensions marked equally on either side to ensure symmetry.
---
**Measurements:**
- **Second Moment of Area:**
- \( \bar{I}_{x'} = 98740460 \, \text{mm}^4 \)
- \( \bar{I}_{y'} =\) (to be determined)
- **Radii of Gyration:**
- \( \bar{k}_{x'} =\) (to be determined)
- \( \bar{k}_{y'} =\) (to be determined)
---
The provided dimensions and axes allow for the calculation of structural properties critical in engineering analyses, such as stress distribution and bending resistance.
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